Updated readme with a note about the return value type of wcar with a single command in the body
Merge pull request #81 from alexkehayias/master

Add `:as-pipeline` note to README (@alexkehayias)
Fix dead `wcar` ref link, remove unnecessary destructuring (Jan Rychter)
EXPERIMENTAL: Bump to commons-pool v2.2
Deps: Encore 1.3.0
New lock-free conn pool cache
v2.7.0-SNAPSHOT